Micelle formation in mixtures of styrene-isoprene diblock copolymer and poly(vinyl methyl ether)

Jong-Hyun Ahn, Byeong Hyeok Sohn, Wang Cheol Zin, Si Tae Noh

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The characteristics of micelle formed in blends of styrene-isoprene diblock copolymer (SI) and poly(vinyl methyl ether) (PVME) were investigated by using small-angle X-ray scattering (SAXS), transmission electron microscopy (TEM), and light scattering techniques. The results of SAXS and TEM experiments indicate that the blends form spherical micelles with isoprene-rich cores and styrene-corona mixed with PVME in a matrix of PVME. As temperature increased, the blends underwent macrophase separation into a PVME-rich phase and a SI-rich phase which was also microphase-separated to ordered microdomains. Upon further heating, the ordered structure of the SI-rich region transforms to a disordered phase in a manner resembling the order-disorder transition in pure block copolymer melts.

Original languageEnglish
Pages (from-to)4459-4465
Number of pages7
JournalMacromolecules
Volume34
Issue number13
DOIs
Publication statusPublished - 2001 Jun 19

Fingerprint

Isoprene
Styrene
Micelles
Block copolymers
Ethers
X ray scattering
Transmission electron microscopy
Order disorder transitions
Light scattering
Heating
isoprene
poly(vinyl methyl ether)
Experiments
Temperature

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Ahn, Jong-Hyun ; Sohn, Byeong Hyeok ; Zin, Wang Cheol ; Noh, Si Tae. / Micelle formation in mixtures of styrene-isoprene diblock copolymer and poly(vinyl methyl ether). In: Macromolecules. 2001 ; Vol. 34, No. 13. pp. 4459-4465.
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Micelle formation in mixtures of styrene-isoprene diblock copolymer and poly(vinyl methyl ether). / Ahn, Jong-Hyun; Sohn, Byeong Hyeok; Zin, Wang Cheol; Noh, Si Tae.

In: Macromolecules, Vol. 34, No. 13, 19.06.2001, p. 4459-4465.

Research output: Contribution to journalArticle

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AU - Zin, Wang Cheol

AU - Noh, Si Tae

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AB - The characteristics of micelle formed in blends of styrene-isoprene diblock copolymer (SI) and poly(vinyl methyl ether) (PVME) were investigated by using small-angle X-ray scattering (SAXS), transmission electron microscopy (TEM), and light scattering techniques. The results of SAXS and TEM experiments indicate that the blends form spherical micelles with isoprene-rich cores and styrene-corona mixed with PVME in a matrix of PVME. As temperature increased, the blends underwent macrophase separation into a PVME-rich phase and a SI-rich phase which was also microphase-separated to ordered microdomains. Upon further heating, the ordered structure of the SI-rich region transforms to a disordered phase in a manner resembling the order-disorder transition in pure block copolymer melts.

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